ParaChat Server 4.0 does not log users off if the browsers back button is used, which allows remote attackers to cause a denial of service by repeatedly logging into a chat room, hitting the back button, then logging into the same chat room as a different user, which fills the chat room with invalid users.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Parachat_server | Parachat | 4.0 (including) | 4.0 (including) |